Home / 55,228,206.47-76,215,008.91-30,781,395.59

Finding the Fourth Proportional to 55,228,206.47, 76,215,008.91 and 30,781,395.59

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Solution

The fourth proportional to 55,228,206.47, 76,215,008.91 and 30,781,395.59 is: 42,478,372.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,228,206.47 : 76,215,008.91 = 30,781,395.59 : x
  2. Step 2: Convert to fraction form
    55,228,206.47/76,215,008.91 = 30,781,395.59/x
  3. Step 3: Cross multiply
    55,228,206.47x = 76,215,008.91 × 30,781,395.59
  4. Step 4: Simplify right side
    55,228,206.47x = 2,346,004,338,619,103
  5. Step 5: Solve for x
    x = 2,346,004,338,619,103/55,228,206.47
  6. Step 6: Final answer
    x = 42,478,372.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.